ML20147J251
| ML20147J251 | |
| Person / Time | |
|---|---|
| Site: | Crystal River  |
| Issue date: | 04/10/1997 |
| From: | Raghavan L NRC (Affiliation Not Assigned) |
| To: | Richard Anderson FLORIDA POWER CORP. |
| References | |
| TAC-M96604, NUDOCS 9704110179 | |
| Download: ML20147J251 (3) | |
Text
_
4 -.
f
'[
- /
UNITED STATES NUCLEAR REGULATORY COMMISSION I
WASHINGTOed, D.C 30eedH1001 April 10, 1997
?
4
}
Mr. Roy A. Anderson
' Senior Vice President, Nuclear Operations Florida Power Corporation ATTN: Manager, Nuclear Licensing Crystal River Energy Complex -
15760 W Power Line Street Crystal River, Florida 34428-6708
SUBJECT:
. CRYSTAL RIVER UNIT 3 - LICENSING BASIS FOR DYNAMIC LOCA EFFECTS (TAC NO. M96604)
Dear Mr. Anderson:
i Our Inspection. Report (IR) 95-15 dated August 11, 1995, identified an
. Inspector Fellowup Item (IFI) 95-15-02 relating to dynamic effects of a loss i
of coolant accident (LOCA) on the service water (SW) system piping. The purpese of this letter is to request information for resolving the IFI.
j Your position, as ' stated in IR 95-15, is that Crystal River Unit 3 (CR3) was licensed based on Leak Before Break (LBB) criteria for the primary RCS piping j
(28" and 36"), and is exempt from General Design Criterion (CDC) 4, (design from dynautic effects of pipe rupture).
Based on this position, you stated i
I
{
that LOCA effects on the service water (SW) piping as a result of primary reacto'r coolant system (RCS) pipe breaks need not be considered.
We concur.with your position.
The staff has previously evaluated Babcock &
Wilcox Owners' Group (B&WOG) Reports BAW-1847, Rev. 1, " Leak-Before-Break Evaluation of Margins Against Full Break for RCS Primary Piping of B&W Designed NSSS," September 1985; and BAW-1889P, " Piping Material Properties for Leak-Before-Break Analysis," dated October 1985. These B&W generic reports included structural and fracture mechanics analyses using generic bounding data (loads and materials properties) for all B&WOG plants.
CR3 was one of
.the participating B&WOG members and bounded by the conclusions of the B&W evaluation. Based on its review of the B&WOG reports, the staff, in a safety evaluation dated December 12, 1985, found the LBB methodology as an acceptable alternative'to designing against dynamic loads associated with postulated ruptures of primary coolant loop piping.
However,'LBB methodology wer r.ot approved for the RCS branch lines, including the press.urizer surge line, and therefore, they are not exempt from the GDC4 reqairements.
IR 95-15 stated that, based on your review of plant drawings, you have determined that the pressurizer surge line may have potential undesirable interaction with the SW piping. We understand that you plan to field inspect the surge line area to confirm this potential interaction.
110032
)
3 U
9704110179 970410 PDR ADOCK 05000302 0
5k
?
PDR 1
m
,4
}
iMr. Roy A.-Anderson :If your field inspection has been completed, please provide the results and' t
If not, please i
l provide your schedule for completing the field inspections and submittal of-the results.
If you have any questions reg rding this mat' r, please write'or call me at (301) 415-1471.
Sincerely, Original signed by
\\
'L. Raghavan, Project Manager Project Directorate II-3 t
Division of Reactor Projects - I/II
\\
l Office of Nuclear Reactor Regulation
\\
. Docket No. 50-302 cc:.See next page t
- n N Distribution
- Docket File >
4 PUBLIC CR-3 r/f S. Varga OGC ACRS 1
DOCUMENT NAME: G:\\ CRYSTAL \\96604.DFT
' is recalve a copy of this document, Indicate in the in:
"C" = Copy without attachment / enclosure "E" = Copy with attechment/ enclosure
'"N" = No copy 0FFICE PDII 3/PM l
PD!! 3/LA' s kit PDIl-3/D )) Icl l
l l
NAME LRagaven W BClayten / W FHebdon N DATE 04 M /97 04//} /97 04/ O /97 04/ /97 1
0FFICIAL RECORD COPY 4
3,
Mr. Roy A. Anderson CRYSTAL RIVER UNIT NO. 3 r
Florida Power Corporation GENERATING PLANT cc:
Mr. R. Alexander Glenn Senior Resident Inspector Corporate Counsel Crystal River Unit 3 Florida Power Corporation.
U.S. Nuclear Regulatory Commission MAC-A5A-6745 N. Tallahassee Road P.O. Box 14042 Crystal River, Florida 34428 St. Petersburg, Florida 33733-4042 Mr. John P. Cowan Mr. Bruce J. Hickle, Director Vice President, Nuclear Production Nuclear Plant Operations (NA20)
(SA2C)
Florida Power Corporation Florida Power Corporation Crystal River Energy Complex Crystal River Energy Complex 15760 W. Power Line Street 15760 W. Power Line Street Crystal River, Florida 34428-6708 Crystal River, Florida 34428-6708 Mr. Robert B. Borsum Regional Administrator, Region 11 B&W Nuclear Technologies U.S. Nuclear Regulatory Commission
'1700 Rockville Pike, Suite 525 101 Marietta Street NW., Suite 2900 Rockville, Maryland 20852 Atlanta, Georgia 30323 Mr.. Bill Passetti Mr. Kerry Landis Office of Radiation Control U.S. Nuclear Regulatory Commission Department of Health and 101 Marietta Street, NW. Suite 2900 Rehabilitative Services Atlanta, Georgia 30323-0199 1317 Winewood Blvd.
Tallahassee, Florida 32399-0700 4
Attorney General Department of Legal Affairs i
The Capitol Tallahassee, Florida 32304 Mr. Joe Myers, Director Division of Emergency Preparedness Department of Community Affairs 2740 Centerview Drive Tallahassee, Florida 32399-2100 Chairman
. Board of County Commissioners Citrus County 110 North Apopka Avenue Iverness, Florida 34450-4245 Mr. David Kunsemiller, Director Nuclear Operations Site Support (SA2A)'
Florida Power Corporation Crystal River Energy Complex 15760 W. Power Line Street Crystal: River, Florida-34428-6708
.